Yahoo had a lot of announcements to share with the crowd at the Consumer Electronics Show (CES) in Las Vegas this evening. Yahoo! unveiled a few new products and media sites across smartphones, tablets and the web, as well as a new suite of advertising technology to help advertisers, publishers and partners get more return from their online advertising campaigns.

In a keynote address, Yahoo CEO Marissa Mayer discussed the company’s vision to make the world’s daily habits inspiring and entertaining. Yahoo executives were joined onstage by Yahoo’s new Global Anchor Katie Couric; Yahoo Tech vice president of editorial David Pogue; celebrity talent including SNL’s Cecily Strong and Keenan Thompson; as well as John Legend, Grammy-Award-winning artist and a member of Yahoo’s 2013 On the Road tour.

“Yahoo is about making the world’s daily habits inspiring and entertaining, and there are few places as inspiring and entertaining as CES,” said Marissa Mayer. “We have been hard at work re-imagining Yahoo’s core businesses across search, communications, media and video – all powered by two powerful platforms, Flickr and Tumblr. The response has been tremendous. This fall, for the first time ever, we surpassed 400 million monthly mobile users, which is about half of our 800 million total monthly users.”

Yahoo Acquires Aviate: Yahoo today announced the acquisition of Aviate, a company that shares its vision for simple and intelligent mobile experiences. The Aviate team created a product that changes the way people interact with their Android devices, by making them smarter and more in context with the user’s daily habits. Aviate auto-categorizes apps on the Android phone and intelligently gathers them into “spaces.” By using signals to understand a person’s context – such as WIFI, GPS, Accelerometer, or Time – Aviate automatically surfaces information at the moment it is useful. So whether a user is just waking up, driving, at work or out for the night, Aviate learns their digital habits and helps anticipate the information and apps they need.

Yahoo plans to make the Aviate technology a central part of its Android based experiences in 2014 and beyond and will continue to develop the product. Aviate, currently in private beta, is available to the first 25,000 people who download the app in the Google Play store and use code “YAHOO”.

Yahoo News Digest: Yahoo launched Yahoo News Digest for iPhone and iPod touch, built using insights from Summly. Yahoo News Digest delivers the most important news of the day, twice per day, right to a mobile device. Evolving the concept of summarization a step further, the digests provide a definitive summary of all the important, need-to-know news to help people stay on top of what is happening in the world. In the morning and evening, users will be notified when the top stories are ready to read. They can scan the Summly summary, as well as read units of information called “Atoms,” which provide context to each story, including maps, infographics, videos, photos and more.

The New Yahoo Food and Yahoo Tech: Yahoo unveiled Yahoo Food and Yahoo Tech. These new digital magazines marry the elegant design and bold imagery of traditional magazines with immersive bite-sized stories, engaging videos, and stunning photos curated from Flickr and across the web. The new sites are designed with phones and tablets in mind, and feature a fresh design for the computer screen as well, with gorgeous photographic tiles that represent the various stories. When readers click a tile, it smoothly expands in place to the full article; so readers don’t have to deal with browser tabs, multiple windows, or the Back button.

Yahoo Food gives readers photos, surprising recipes, stories on the top food trends, the best cooking tools, new techniques, and everything they need to feel inspired. The site is led by an all-star team of editors including Managing Editor Sarah McColl; senior web editor, Julia Bainbridge; Rachel Tepper, and Alex Van Buren.

Yahoo Tech is for people who want machines that work well, feel right, and don’t cost too much—but who don’t care about version numbers, chip names, and bus speeds. With features like Pogue’s Inbox, What to Buy Now, Unsung Features, Daily Meditations, and exclusive Kickstarter Reviews, Yahoo Tech covers not just what to buy, but also how to use it. Led by best-selling author, Emmy-winning TV host, and vice president of editorial David Pogue, Yahoo Tech features an all-star team including five daily anchor columnists Pogue, Rob Pegoraro, Dan Tynan, Rob Walker and Deb Amlen; Daniel Bean, editor Jason Gilbert and editorial director Rafe Needleman; and writers Alyssa Bereznak, Brian Heater, and Ben Silverman.

Yahoo Smart TV is the next evolution of Yahoo’s award-winning Connected TV platform already used in millions of households today. Yahoo Smart TV offers interactive viewing with highly personalized program recommendations from TV, Video on Demand, and Web services, along with complementary content related to the show. The Yahoo Smart TV platform is available immediately for integration into televisions, media players and set-top devices. Yahoo Smart TV is currently being demonstrated at CES, powered by Sigma and AmLogic reference platforms.

The New Yahoo Advertising: Yahoo announced its new, unified suite of digital advertising products for premium and audience-focused display, native and search advertising, which are accessible through a new buying platform.

Included in today’s announcement are three new products and platforms:

Yahoo Audience Ads — a better way to buy ads targeted to specific audiences. Yahoo Audience Ads deliver the right messages to the right users across Yahoo and other high-quality sites with the scale and targeting precision of real-time programmatic buying;

Yahoo Ad Exchange — a new global ad marketplace that gives premium publishers more visibility and control over advertising on their sites.

Tumblr Sponsored Posts Powered by Yahoo Advertising: The company also announced that Tumblr Sponsored Posts now leverage Yahoo’s technology to offer enhanced targeting, improved optimization and a new way to buy. These features are available among Tumblr’s existing suite of advertiser offerings, which provide brands the ability to share striking, fun creative work that is seamless to the Tumblr experience. Additionally, Tumblr is introducing a cost per engagement (CPE) pricing model, which means that advertisers are only charged for active engagements with their content — Reblogs, Likes, follows or clicks made directly from the sponsored unit itself.